Awesome Rails Gems

A curated list of Awesome Rails Gems.

Table of Contents

• A/B testing
• AI
• ActiveRecord
• ActiveRecord Validations
• Administration
• Analytics
• API
• Authentication
• Authorization
• Background processing
• Business logic
• Charts
• Code quality
• Debugging
• Development
• E-commerce
• Encryption
• Feature flags
• Forms
• GDPR
• Geocoding
• HTTP client
• I18n
• Images
• Logging
• Multi-tenancy
• Notifications
• Pagination
• Payments
• PDF generation
• Performances
• QR Codes
• Search
• SEO
• Security
• Testing
• Views and related

A/B testing

• ankane / field_test A/B testing for Rails

AI

• alexrudall / ruby-openai Use the OpenAI API with Ruby!
• gbaptista / ollama-ai A Ruby gem for interacting with Ollama's API that allows you to run open source AI LLMs (Large Language Models) locally.

ActiveRecord

• aasm / aasm AASM - State machines for Ruby classes (plain Ruby, ActiveRecord, Mongoid, NoBrainer, Dynamoid)
• ankane / active_median Median and percentile for Active Record, Mongoid, arrays, and hashes
• brendon / acts_as_list An ActiveRecord plugin for managing lists.
• ActsAsParanoid / acts_as_paranoid ActiveRecord plugin allowing you to hide and restore records without actually deleting them.
• mbleigh / acts-as-taggable-on A tagging plugin for Rails applications that allows for custom tagging along dynamic contexts.
• ryanto / acts_as_votable Votable ActiveRecord for Rails
• stefankroes / ancestry Organise ActiveRecord model into a tree structure
• ctran / annotate_models Annotate Rails classes with schema and routes info
• ankane / blazer Business intelligence made simple
• countries / countries All sorts of useful information about every country packaged as convenient little country objects.
• magnusvk / counter_culture Turbo-charged counter caches for your Rails app.
• jhawthorn / discard Soft deletes for ActiveRecord done right
• ankane / groupdate The simplest way to group temporal data
• ankane / hightop A nice shortcut for group count queries
• gocardless / ibandit Convert national banking details into IBANs, and vice-versa.
• plentz / lol_dba lol_dba is a small package of rake tasks that scan your application models and displays a list of columns that probably should be indexed. Also, it can generate .sql migration scripts.
• RubyMoney / monetize A library for converting various objects into Money objects.
• RubyMoney / money A Ruby Library for dealing with money and currency conversion.
• RubyMoney / money-rails Integration of RubyMoney - Money with Rails
• rubysherpas / paranoia acts_as_paranoid for Rails 5, 6 and 7
• excid3 / prefixed_ids Friendly Prefixed IDs for your Ruby on Rails models
• public-activity / public_activity Easy activity tracking for models - similar to Github's Public Activity
• voormedia / rails-erd Generate Entity-Relationship Diagrams for Rails applications
• brendon / ranked-model An acts_as_sortable/acts_as_list replacement built for Rails 4, 5 and 6
• doctolib / safe-pg-migrations Make your PostgreSQL migrations safe
• jpmcgrath / shortener Shortener makes it easy to create shortened URLs for your rails application.
• ankane / strong_migrations Catch unsafe migrations in development

ActiveRecord Validations

• daddyz / phonelib Ruby gem for phone validation and formatting using google libphonenumber library data
• truemail-rb / truemail Configurable framework agnostic plain Ruby email validator/verifier. Verify email via Regex, DNS, SMTP and even more. Be sure that email address valid and exists.
• validates-email-format-of / validates_email_format_of Validate e-mail addreses against RFC 2822 and RFC 3696 with this Ruby on Rails plugin and gem.
• perfectline / validates_url URL Validation for Rails
• micke / valid_email2 ActiveModel validation for email. Including MX lookup and disposable email blacklist
• yolk / valvat Validates european vat numbers. Standalone or as a ActiveModel validator.

Administration

• activeadmin / activeadmin The administration framework for Ruby on Rails applications.
• railsadminteam / rails_admin RailsAdmin is a Rails engine that provides an easy-to-use interface for managing your data

Analytics

• ankane / ahoy Simple, powerful, first-party analytics for Rails
• ankane / ahoy_email First-party email analytics for Rails

API

• Apipie / apipie-rails Ruby on Rails API documentation tool
• doorkeeper-gem / doorkeeper Doorkeeper is an OAuth 2 provider for Ruby on Rails / Grape.
• jwt / ruby-jwt A ruby implementation of the RFC 7519 OAuth JSON Web Token (JWT) standard.
• rswag / rswag Seamlessly adds a Swagger to Rails-based API's

Authentication

• ankane / authtrail Track Devise login activity
• heartcombo / devise Flexible authentication solution for Rails with Warden.
• scambra / devise_invitable An invitation strategy for devise
• tinfoil / devise-two-factor Barebones two-factor authentication with Devise
• ankane / pretender Log in as another user in Rails
• mdp / rotp Ruby One Time Password library

Authorization

• varvet / pundit Minimal authorization through OO design and pure Ruby classes

Background processing

• mperham / sidekiq Simple, efficient background processing for Ruby
• sidekiq-scheduler / sidekiq-scheduler Lightweight job scheduler extension for Sidekiq

Business logic

• AaronLasseigne / active_interaction Manage application specific business logic.
• collectiveidea / interactor Interactor provides a common interface for performing complex user interactions.
• collectiveidea / interactor-rails Interactor Rails provides Rails support for the Interactor gem.
• trailblazer / trailblazer The advanced business logic framework for Ruby.

Charts

• ankane / chartkick Create beautiful JavaScript charts with one line of Ruby
• topfunky / gruff Gruff graphing library for Ruby

Code quality

• Shopify / better-html Better HTML for Rails
• Shopify / erb-lint Lint your ERB or HTML files
• flyerhzm / rails_best_practices a code metric tool for rails projects
• rubocop / rails-style-guide A community-driven Ruby on Rails style guide
• rubocop / rubocop A Ruby static code analyzer and formatter, based on the community Ruby style guide.
• rubocop / rubocop-rails A RuboCop extension focused on enforcing Rails best practices and coding conventions.
• rubocop / rubocop-rspec Code style checking for RSpec files
• airbnb / ruby Ruby Style Guide
• Shopify / ruby-style-guide Shopify’s Ruby Style Guide

Debugging

• BetterErrors / better_errors Better error page for Rack apps
• deivid-rodriguez / byebug Debugging in Ruby 2

Development

• bkeepers / dotenv A Ruby gem to load environment variables from .env.
• ffaker / ffaker Faker refactored.
• ryanb / letter_opener Preview mail in the browser instead of sending.

E-commerce

• solidusio / solidus Solidus, the open-source eCommerce framework for industry trailblazers.

Encryption

• ankane / blind_index Securely search encrypted database fields
• ankane / lockbox Modern encryption for Ruby and Rails

Feature flags

• jnunemaker / flipper Beautiful, performant feature flags for Ruby.

Forms

• DavyJonesLocker / client_side_validations Client Side Validations made easy for Ruby on Rails
• countries / country_select Gemification of rails's country_select
• heartcombo / simple_form Forms made easy for Rails! It's tied to a simple DSL, with no opinion on markup.

GDPR

• prey / gdpr_rails Rails Engine for the GDPR compliance

Geocoding

• alexreisner / geocoder Complete Ruby geocoding solution.

HTTP client

• lostisland / faraday Simple, but flexible HTTP client library, with support for multiple backends.
• jnunemaker / httparty Makes http fun again!

I18n

• tigrish / devise-i18n Translations for the devise gem
• svenfuchs / rails-i18n Repository for collecting Locale data for Ruby on Rails I18n as well as other interesting, Rails related I18n stuff

Images

• toy / image_optim Optimize images using multiple utilities
• janko / image_processing High-level image processing wrapper for libvips and ImageMagick/GraphicsMagick

Logging

• roidrage / lograge An attempt to tame Rails' default policy to log everything.
• shadabahmed / logstasher Awesome rails logs
• ankane / logstop Keep personal data out of your logs

Multi-tenancy

• ErwinM / acts_as_tenant Easy multi-tenancy for Rails in a shared database setup.

Notifications

• rpush / rpush The push notification service for Ruby.
• excid3 / noticed Notifications for Ruby on Rails applications

Pagination

• kaminari / kaminari A Scope & Engine based, clean, powerful, customizable and sophisticated paginator for Ruby webapps
• ddnexus / pagy The Best Pagination Ruby Gem
• mislav / will_paginate Pagination library for Rails, Sinatra, Merb, DataMapper, and more

Payments

• pay-rails / pay Payments for Ruby on Rails apps

PDF generation

• gettalong / hexapdf Versatile PDF creation and manipulation for Ruby
• pdfkit / pdfkit A Ruby gem to transform HTML + CSS into PDFs using the command-line utility wkhtmltopdf
• prawnpdf / prawn Fast, Nimble PDF Writer for Ruby
• invopop / prawn-attachment Attach files to Prawn generated PDF documents
• mileszs / wicked_pdf PDF generator (from HTML) plugin for Ruby on Rails

Performances

• Shopify / bootsnap Boot large Ruby/Rails apps faster
• flyerhzm / bullet help to kill N+1 queries and unused eager loading
• DamirSvrtan / fasterer Don't make your Rubies go fast. Make them go fasterer ™.
• ankane / pghero A performance dashboard for Postgres
• Shopify / pitchfork Rack HTTP server for shared-nothing architecture
• pawurb / rails-pg-extras Rails PostgreSQL database performance insights. Locks, index usage, buffer cache hit ratios, vacuum stats and more.
• rubocop / rubocop-performance An extension of RuboCop focused on code performance checks.

QR Codes

• whomwah / rqrcode A Ruby library that encodes QR Codes

Search

• meilisearch / meilisearch-rails Meilisearch integration for Ruby on Rails
• Casecommons / pg_search pg_search builds ActiveRecord named scopes that take advantage of PostgreSQL’s full text search
• activerecord-hackery / ransack Object-based searching.
• ankane / searchkick Intelligent search made easy

SEO

• norman / friendly_id FriendlyId is the “Swiss Army bulldozer” of slugging and permalink plugins for ActiveRecord.
• kpumuk / meta-tags Search Engine Optimization (SEO) for Ruby on Rails applications.
• kjvarga / sitemap_generator SitemapGenerator is a framework-agnostic XML Sitemap generator written in Ruby with automatic Rails integration. It supports Video, News, Image, Mobile, PageMap and Alternate Links sitemap extensio…

Security

• presidentbeef / brakeman A static analysis security vulnerability scanner for Ruby on Rails applications
• rubysec / bundler-audit Patch-level verification for Bundler

Testing

• teamcapybara / capybara Acceptance test framework for web applications
• thoughtbot / factory_bot A library for setting up Ruby objects as test data.
• rspec / rspec-rails RSpec for Rails 5+
• simplecov-ruby / simplecov Code coverage for Ruby with a powerful configuration library and automatic merging of coverage across test suites

Views and related

• fnando / browser Do some browser detection with Ruby. Includes ActionController integration.
• drapergem / draper Decorators/View-Models for Rails Applications
• thoughtbot / high_voltage Easily include static pages in your Rails app.
• jamesmartin / inline_svg Embed SVG documents in your Rails views and style them with CSS
• bullet-train-co / nice_partials A little bit of magic to make partials perfect for components.